Conclusive quantum-state transfer with a single randomly coupled spin chain
Quantum Physics
2007-05-23 v1
Abstract
We studied the quantum state transfer in randomly coupled spin chains. By using local memories storing the information and dividing the task into transfer portion and decoding portion, conclusive transfer was ingeniously achieved with just one single spin chain. In our scheme, the probability of successful transfer can be made arbitrary close to unity. Especially, our scheme is a good protocol to decode information from memories without adding another spin chain. Compared with Time-reversed protocol, the average decoding time is much less in our scheme.
Cite
@article{arxiv.quant-ph/0606088,
title = {Conclusive quantum-state transfer with a single randomly coupled spin chain},
author = {Jiankui He and Qing Chen and Lei Ding and Shao-Long Wan},
journal= {arXiv preprint arXiv:quant-ph/0606088},
year = {2007}
}
Comments
13 pages, 3 figures